CONFIRMED
MILKY WAY
|
| SS 305 | IRAS - | GSC2.4.2 N3BL000009 | AAVSO - |
| SIMBAD ATO J260.3910+01.8365 | Pan-STARRS 110202603910014287 | SAO - | VSX 572308 |
| GAIA DR3 4387125994117106816 | SkyMapper - | WRAY - | GCVS - |
| 2MASS J17213383+0150117 | HIP - | Hen - | BD - |
| WISE J172133.84+015011.5 | TYC - | ESO - | HD - |
| Bidelman (1954) | - | Allen (1984) | - | Belzcyński et al. (2001) | - |
| Gaposchkin (1957) | - | Kenyon (1986) | - | Akras et al. (2019) | - |
| Boyarchuk (1969) | - | Vaidis (1988, 1991) | - |
| Right ascension (°) | 260.3910Ref | Parallax (mas) | 0.118±0.021Ref | Reddening E(B-V) (mag) | 0.17±0.01Ref, Note |
| Declination (°) | 1.8365Ref | Distance (kpc) | 7.65Ref, Note, 6.19Ref, Note | ||
| Galactic longitude (°) | 23.9702Ref | Proper motion in α (mas/yr) | -2.51±0.02Ref | ||
| Galactic latitude (°) | 20.7670Ref | Proper motion in δ (mas/yr) | -7.09±0.01Ref |
| X-Ray | - | IR type | SRef | Radio | - |
| X-Ray type | - | J (mag) | 9.15Ref | Flickering | - |
| GALEX FUV (mag) | 15.78Ref | H (mag) | 8.18Ref | Outbursts | - |
| GALEX NUV (mag) | 16.41Ref | K (mag) | 7.88Ref | Outburst type | - |
| IUE | NoRef | WISE W1 (mag) | 7.79Ref | Jets | - |
| FUSE | NoRef | WISE W2 (mag) | 7.88Ref | Resolved nebula | - |
| U (mag) | - | WISE W3 (mag) | 7.51Ref | IPmax (eV) | 54.4Ref |
| B (mag) | 14.98Ref | WISE W4 (mag) | 6.98Ref | [O III] lines | YesRef |
| V (mag) | 13.79Ref | IRAS 12μm (Jy) | - | He II lines | YesRef |
| R (mag) | - | IRAS 25μm (Jy) | - | [Fe VII] lines | NoRef |
| I (mag) | - | IRAS 60μm (Jy) | - | O VI lines | NoRef |
| BP (mag) | 13.89Ref | IRAS 100μm (Jy) | - | ||
| G (mag) | 12.41Ref | AKARI S09 (Jy) | - | ||
| RP (mag) | 11.18Ref | AKARI S18 (Jy) | - |
| Orbital period (days) | - | γ velocity (km/h) | -97.35±15.52Ref | Size of giant’s orbit (AU) | - |
| Eccentricity | - | RV of giant (km/h) | - | Separation (AU) | - |
| Inclination (°) | - | Inferior conj. of giant (JD) | - | Mass function | - |
| Eclipses | - | Mass ratio | - | ||
| Orbital ephemeris | - |
| Spectral type | - | Mass (M⊙) | - | Pulsation | Yes?Ref |
| Eff. temperature (K) | - | Radius (R⊙) | - | Type | SR?Ref |
| IR type | SRef | Luminosity (L⊙) | - | Pulsation period (days) | 459.11Ref |
| Metallicity [Fe/H] | - | Pulsation ephemeris | - |
| Type/Spectral type | WDRef | Mass (M⊙) | - | Spin period (min) | - |
| Shell-burning/Accreting-only | shell-burningRef | Radius (R⊙) | - | Accretion disk | - |
| Eff. temperature (K) | - | Luminosity (L⊙) | - | ||
| Lower limit (K) | - | ||||
| Upper limit (K) | - |
Selected as a potential symbiotic star by Akras (2023), based on GALEX UV photometry, 2MASS/WISE IR photometry, and the ASAS-SN variables catalog. Their spectroscopic observations confirmed the symbiotic nature of this star. It was previously classified as an emission-line star by Stephenson & Sanduleak (1977).